This paper addresses a modified kinetic-hydraulic model for up-flow anaerobic sludge blanket (UASB) reactor aimed to treat wastewater of biodegradable organic substrates as acetic acid based on Van der Meer model incorporated with biological granules inclusion. This dynamic model illustrates the biomass kinetic reaction rate for both direct and indirect growth of microorganisms coupled with the amount of biogas produced by methanogenic bacteria in bed and blanket zones of reactor. Moreover, the pH value required for substrate degradation at the peak specific growth rate of bacteria is discussed for Andrews’ kinetics. The sensitivity analyses of biomass concentration with respect to fraction of volume of reactor occupied by granules and up-flow velocity are also demonstrated. Furthermore, the modified mass balance equations of reactor are applied during steady state using Newton Raphson technique to obtain a suitable degree of freedom for the modified model matching with the measured results of UASB Sanhour wastewater treatment plant in Fayoum, Egypt. © IWA Publishing 2016.
Guest Editorial: Fractional-Order Circuits and Systems: Theory, Design, and Applications
Nowadays, there is a significant research interest in the area of fractional-order circuits.
Comparison and database development of four recent ASM3 model extensions
In the last decade, many Activated Sludge Model No
Novel permutation measures for image encryption algorithms
This paper proposes two measures for the evaluation of permutation techniques used in image encryption
On The Optimization of Fractional Order Low-Pass Filters
This paper presents three different optimization cases for normalized fractional order low-pass filters (LPFs) with numerical, circuit and experimental results
Power and energy analysis of fractional-order electrical energy storage devices
Characterizing and modeling electrical energy storage devices is essential for their proper integration in larger systems
Symmetric encryption algorithms using chaotic and non-chaotic generators: A review
This paper summarizes the symmetric image encryption results of 27 different algorithms, which include substitution-only, permutation-only or both phases
Fundamentals of fractional-order LTI circuits and systems: number of poles, stability, time and frequency responses
This paper investigates some basic concepts of fractional-order linear time invariant systems related to their physical and non-physical transfer functions, poles, stability, time domain, frequency domain, and their relationships for different fractional-order differential equations
Fractional-Order Two-Port Networks
We introduce the concept of fractional-order two-port networks with particular focus on impedance and admittance parameters
Two-port two impedances fractional order oscillators
This paper presents a study for general fractional order oscillator based on two port network where two topologies of oscillator structure with two impedances are discussed